They're very helpful for a lot of things, but it's at most a revolution on the scale of the smartphone, not the singularity. It may define the next fifteen years of tech (I'm withholding judgement), but it's not the end of the world as we know it.
Isn’t that conflating the present with the future? That they are very helpful is to say nothing about what they will be able to do.
It’s like predicting that a motorcar will never outrun a horse because current motorcars can only run at 5mph.
Transformers were introduced a mere six years ago.
The safe bet with any technology is that it will be capable of at least an order of magnitude more performance than whatever biology has been able to come up with.
Horses vs cars. Birds vs aircraft. Carlsen vs Stockfish. Betting on biology is a very unsafe position to take.